Electric heater or vaporizer



Nov- 17, 1925- 1,561,815

.' L. E. ASKE ELECTRIC HEATER OR VAPORIZER Filed Jan. 10-, 1924 GEL/9.2;, I 62113.5.

INVENTOR. AZMML e 6247a C /4 By W Mm ATTORNEYS. I

' or sponge.

Patented Nov. 17, 1925.

UNITED STATES LEONARD E. ASKE, O35 DULUTH, IVIINNESOTA.

ELECTRIC HEATER OR VAPORI ZER.

Application filed. January 10, 1924.

To all whom it may concern:

Be it known that I, LEONARD E. AsKn, a citizen of the United States, residing at Duluth, in the county of St. Louis and State of Minnesota, have invented certain new and useful Improvements in Electric Heaters or Vaporizers, of which I do hereby declare the following to be a specification.

My'invention relates to electric heaters or Vaporizers and has for its object the provision of a quick action electric vaporizer for vaporizing hydrocarbon fuel for internal combustion engines, or for other purposes, and which is capable in one form of automatically absorbing and storing a quantity of fuel for initial vaporization upon a future occasion. With this and other objects in View, it consists of the structures, combinations and arrangements of parts hereinafter described and claimed.

In the drawings, Fig. 1 is a side elevation, partly in central vertical longitudinal section of my said invention. Fig. 2 is a top plan view of an asbestos absorbent pad Fig. 3 is a top planview of a brass washer. Fig. 4c is a top plan viewof my said invention. Fig. 5 is a top plan view of an electric wire or heating coil. is a central vertical longitudinal view of a portion of an automobile manifold, showing my invention in side elevation mounted therein. Fig. 7 is a side elevation of said heating wire or coil. Fig- 8 is a top plan view of a preferred form of said pad. Fig. 9 is a central vertical section through said preferred form of pad, showing said wire or coil in side elevation seated thereon.

In the drawings, 1 is a fuelmanifold upon; which is formed an enlarged chamber 1, the wall of which is apertured and adapted to receive aplug 2 of any suitable material, preferably of brass, which is adapted to extend into said chamber and to engage the side walls thereof. Said plug is preferably provided with an annular flange 2 adapted to extend over said housing, and between said fl'angeand the walls of said chamber is preferably inserted a gasket 3 to preventleakage of gas between the side walls of said chamber and said plug.

Extending longitudinally through said plug is a. post 4, of any suitable material, preferably of brass, and between said post and said plug are inserted insulation bush- Serial No. 685,422.

ings 5 and 5 registering longitudinally with each other and spaced from each other as at 7 to permit of longitudinal play.

Upon the inward end of said post and encircling said bushing 5 is preferably mately concentric with said postand are preferably engaged or electrically connected at one end as at 11 to said post in any suitable manner as by gripping contact therewith, and are preferably bent intermediate of their ends to form a series of radially directed points 11* extending to or slightly beyond the peripheries of the pads between which they are inserted. The opposite ends of said coils are preferably extended through the intervening pads and washer 8 and are electrically connected to said plug in any suitable manner, as by being clamped between said washer 8 and said plug. Said radially pointed coils constitute electric heating elements and operate not only to heat and vaporize the moisture contained in said pads, but to form guides or channels for conducting the vapor from the interior surfaces of said pads to the peripheries thereof. Said pads are preferably indented in their surfaces by radial grooves as at 9 (Figs. 8 and 9) for the purpose of forming other channels for the escape of the vapor from the interior sur faces of said pads to the peripheries thereof.

Upon the outer end of said post are mounted clamp nuts 4* and 4 and the inward terminal of said post is provided with a nut or foot 4, by means of which nut 45, the pads, coils and said plug are drawn into a close and compact assembly.

In operation the invention may be-primed by removing it from the manifold and dipping it in gasolineor kerosene. Thereafter, said pads will absorb oil or fuel from the stream passing through the manifold, and will vaporize it while the electric current is flowing through said coils. When said current is turned oil", said pads will absorb and retain enough oil or fuel to prime and charge them for starting the engine again after it has been stopped.

Among the very important and special advantages of the present construction are, first, its great flexibility in size and heating capacity without change in the size of the separate parts, in that a greater or less number of said pads and heating coils may be mounted on a standard post and plug: second, in the form of the heating coil, in which approximately the full length of the coil is in contact with the fuel absorbed in the adjoining pads, and in which the radially directed arms or points assist to guide or conduct the vapor from the interior surfaces of the pads to the peripheries thereof; and in which the coils are almost entirely buried by the pads, thereby insuring an approximately uniform heating of the wire, thus reducing the danger of the wire burning out in the event of a sudden increase in voltage, and permitting the operation to be carried on at a higher temperature than would be safe if the wires were less uniformly heated: third, its simplicity and susceptibility to quick and economical repair in the event of damage to any part: fourth, its adaptability {or use for various sizes and forms of internal combustion engines, subject in a few types to simple and cheap modifications of their manifolds.

My invention is of first and great importance as a starting device for promptly supplying copious quantities of fuel vapor to cold power cylinders, and may if desired be put in either serial or parallel electric circuit with an engine-starting motor, or may be operated on an independent circuit.

It is obvious that said structure may be altered or modified in various details within the scope and spirit of certain of my claims.

What I claim is 1. The combination of a plug, a post extending through said plug, insulating members interposed between said post and said plug, a moisture absorbing asbestos sponge mounted on said post, an electric heating element mounted on said absorbing sponge, one end of said heating element being electrically connected to said post, and the other end of said heating member being electrically connected to said plug.

2. The combination of a plug, a post extending through said plug, insulating means interposed between said post and said plug, a plurality of non-combustible moisture absorbing pads mounted on said post, an electric heating element positioned between two of said pads, one end of said heating element being electrically connected to said post and the other end of said element being electrically connected to said plug.

3. The combination of a plug, a post extending through said plug, insulating means interposed between said post and said plug, a non-combustible moisture absorbing member carried by said post, and an electric heating element in contact with said absorbing member, said member having grooves formed in its surface extending inwardly from its periphery.

4. The combination of a plug, a post extending through said plug, a moisture absorbing member carried by said post and plug, said member having channels formed therein for the escape of moisture or vapor.

5. The combination of a plug, a post extending through said plug a plurality of moisture absorbing members carried by said post, an electric heating element positioned between two of said absorbing members, said heating element comprising an electric wire electrically connected at one end to said post and electrically connected at the opposite end to said plug, a series of loops being formed in said wire intermediate of its ends, said loops extending radially around said post, the outer bends of said loops extending to the peripheries of said absorbing members, the inward bends of said loops being covered by said absorbing members.

6. The combination of a plug, a post ex tending through said plug, a plurality of moisture absorbing pads carried by said post, an electric heating element posltioned between two of said pads, said element com prising an electric wire bent intermediate of its ends to form a series of radially di rected loops respectively extending inwardly from the peripheries of said pads.

7. The combination of a plug, a post extending through said plug, moisture absorb ing means carried by said plug, and an electric heating element extending into said absorbing means, said heating element comprising an electric wire.

8. The combination of a plug, a post extending through said plug, insulating members interposed between said post and said plug, said insulating members being in axial registration with each other and spaced from each other, a plurality of moisture absorbing pads mounted on said post, a metallic washer interposed between said absorbing pads and said plug, heating elements between adjoining ones of. said pads,

and means adapted to cooperate with said post for drawing said pads and heating elements closely and compactly together.

. In testimony whereof, I hereunto aflix my signature.

LEONARD E. ASKE. 

